Dishwashing machine



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J.v HAUK DISHWASHING MACHINE Filed Sept. 22, 1920 13 sheets-sheet l /Y VENTO/9 WWA/5555 74.@ www.

n /TTop/vey J. HAUK DISHWASHING MACHINE 5 sheets-sheet 5 Mar. 6, 1923.

Filed Sept'. 22, z1920 w/T/vEssEs v,

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Mar. 6, 1923. 1,447,304

J.HAUK

DISHWASHING MACHINEi Filed Sept. 22, 1920 5 sheets-sheet 5 WIT/VE 5 555 ifi/M.

ATTORNEY Patented Mar. 6, .1923.

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JOSEPH HAUK, OF SHOREWOODfWISCONSIN, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO STANDARD UTILITIES CORPORATION, .OF MILWAUKEE, WIS- CONSIN,.A CORPORATION OF WISCONSIN. i

DISHWASHING MACHINE.

Application led September 22 1920. Serial No. 411,932.

To all ywhom z't may concern.'

.Be it known that I, JOSEPH HAUK, a citizen of the United States, and resident of Shorewood, county of Milwaukee, and State of lVisconsin, have invented new and useful Improvements in Dishwashing Machines, ofwhich the following is a description, reference being had to the accompanying drawings, which are a part ot' this specification.

The invention relates to dish washing machines.

One of the objects of the invention is to provide a dish washing machine in which the dishes are carried in a rotating basket and subjected to one or more sprays of cleansing fluid.

A further object of the invention is to provide a machine in which the dishes in a rotating basket are subjected to sprays ot water or'other cleansing fluid from above and below them.

A further object of the invention is to provide means for alternately introducing soapy and clear water to the pipe or pipes supplying the nozzle or/nozzles of the machine.

A further object of the invention is to provide a motor driven dish Washing machine in which the motor is automatically Y stopped after a predetermined period.

A further object of the invention .is to provide a dish washing machine having a rotating disc-carrying basket and a rotating washing nozzle for directing a cleansing spray against the dishes in the basket.

In the drawings: Fig. 1 is a plan view of the machine, parts being broken away; Fig.4 2 is a section taken on the line 2-2 of Fig. l; Fig. 3 is a section takenon the line 3-3 of Fig. 2; Fig. 4 is a detail view taken as indicated by 4 4 on Fig. 2; Fig. 5 is a section taken on the line 5- 5 of Fig. 3; Fig. 6 is a section taken onthe line 6-6 of Fig. 5; Fig. 7 is a detail view ot' the switch.

In the drawings the numeral 8 designa-tes' a receptacle supported on legs9 and provided with a centrally disposed bearing 10 in which an upright shaft 11 is journalled, said shaft being securedat its upper end upon the hub 12- ot' a gear 13 which hub supports a. dish-carrying basket 14 within the receptacle. vThe lower end ot' the shaft 11 carries a Worm wheel 15 meshing with a worm 16 journalled in an arm 17 on the bearing 10. The shaft for the worm 16 carries a pulley 18 connected by a belt 19 to a pulley 20 on the drive shaft 21 of an electric motor 22 mounted on a bracket 23.

With this construction the rotation of the motor shaft 21 will, through the driving connections above described, produce a ro- Y tation ofthe basket 14 within the receptacle 8.

Mounted upon a frame 24 secured to one of the legs of the machine, are a plurality of valves 25, 26, 27 28 and 29, each of similar construction. In Fig. 6 I have shown the detail construction of one of these valves and it will be noted that it consists of a casing 30 having an inlet 31, an outlet 32 and a4 valve 33 controlling passage of fluid from said inlet to said outlet and normally nent to its seat by a spring 34. The stem 35 of the valve passes through a stufling box 36 and'projects beyond the casing.

A shaft 37 is journalled in the frame 24- and carries cams 38 which act upon the stems of the valve 26, 27, 28 and 29 to open said valves in predetermined order. A This shaft carries a gear 39 meshing with a gear 40 on the rotating shaft 11.

A water supply pipe 41, preferably from a hot water boiler, leads to the inlet of the valve 25. A pipe 42 connects the outlet of valve 25 wit-h the inlets of valves 26, 27, 28 and 29. A pipe 43 connects thc outlet of valve 26 with a flexible pipe 44 connected to a pipe 45 carried by a cover 46 hingedly connected to the receptacle 8. The outlet pipe 47 from valve 27 leads to a soa-ping `device 48, which may be of any suitable construction to mix soap with the water, the soapy water being discharged through pipe 49 to the pipe A water-propelled rotating spray nozzle 50 is secured to the end of the pipe 45 and directs the spray of cleansing flmd down I upon the dishes in the basket 14. The inlet lower end. Ball bearings 56 are sea-ted in raceways between the upper end of the cap 55 and the flanged end of' the pipe 51 and ball bearings 57 are seated in racewa-ys be-y tween the lower end of said cap 55 and cap 53. The water pressure acts on both sides of' the flanged end of' the pipe 51 so that the nozzleis practically balanced, the bearings 5G. taking the downward pressure and thel be' ings 57 the upward pressures imparted to the nozzle. The nozzle 5() is balanced by a weight 58 and its discharge end is laterally inclined so that the water pressure revolves it.

A pipe 59 leads from the outlet of the valve 29 to a fitting (3() provided with a bore (il and sea-t (52. A pipe (i3 has a flanged end engaging the seat (52 and passes through the bore (31 and carries the cap (i4 of a.' nozzle (55. The cap has a gear (36', formed integral with or connected to it, which meshes with the gear 13 so that the nozzle (35 is positively rotated b v the rotation of' the shaft 11, though it will be understood that a nozzle similar to the upper nozzle which is rotated by the force of the water may be used. The water from the nozzle 65 is directed upwardly against the dishes in the basket 14. A pipe 66 leads from the outlet of the valve 28 to a Soaping device (37 and the soapy Water is conducted through a pipe 68 to the pipe 59.

The basket 14 is provided with a pin (59 enga-geable with a gear 7() on a shaft 71.

The shaft 71 passes through a dial plate 72 having a plurality of recesses 7 3 at the same distance l from the center. An arm 74 is mounted on the shaft 71 and carries a springpressed ball 75 adapted to seat in any one of said recesses 73 and hold the gear 70 in predetermined set position until said gear is moved the distance of one tooth during a' single revolution ofthe basket 14 by the engagement of the pin 69 with the gear 70. When the arm 7 4 has been moved to its final positionv after several revolutions of the basket 14 it strikes the upper end of' a switch rod 76 a-nd releases the upper hooked portion 77 of said rod from engagement with a stop 78 whereby a spring 7 9 is free to move the pivoted switch member 79 out of engagement with contact 80, thus opening the motor circuit andY stopping the machine.

The main water valve 25 is actuated by a lever 81 connected by a link 82 with a bell crank lever 83 which is connected by a link 84 with switch member 79. When the motor switch 'is closed the valve 25 is opened and when the switch is automatically opened in the manner abo've described the linkage connection above mentioned moves the lever 81 away from the stem of the valve 25 and permits said valve to close.

lVhile the machine is operating, the valve 25 is open and water is supplied from the pipe 42 to the valves 26, 27, 28 and 29. AS the sha-ft 11 rotates the cam shaft 37 is also turned and the cams open the valves 26, 27, 28 and 29 for permitting clear and then soapy water and again clear water being sent to the nozzles 5() and (35. For instance, if' the arm 74 is set Sothat the basket 14 makes twelve revolutions before Said arm 7 4 opens the motor switch, then the opening of' the valves 27 and 28 to the nozzles may be so timed as to deliver soapy Wat-er during the first three revolutions of' the basket, then opening the valves 2G and 29 to deliver clear water during the next three revolutions, then again opening valves 27 and 28 to deliver soapy water for the next three and finally a thorough rinsing with clear water with valves 2G and 2S) open during the next three revolutions of the basket. During this time the revolving nozzles 5() and 65, .which are eccentrically disposed with respect to the axis of the rotation of' the basket, direct their sprays in circular paths against the dishes in the basket from above and below while said basket revolves, with the result that all the dishes in the basket are effectively subjected t-o the action of the cleansing fluid and are Washed in a, short time. When the washing operation is completed the machine automatically stops itself. Thus the machine does not require attention while running and all that is necessary is to place the `dirty dishes` in and remove the clean dishes from the basket after the motor stops. The cleansing fluid may be discharged into the usual" kitchen sink or drain from an outlet provided in the lower part o' the receptacle 8, as will be readily understood.

I desire it to be understood that this invention is not limited to any specific form or arrangement of parts except in so far as such limit-ations are specified in the claims.

That I claim as my invention is:

l. In a dish washing machine, the combination of a revolving dish-carrying basket, of' a pair of' revolving nozzles eccentrically disposed with respectto the axis of rotation of said basket and above and below the same and directing washing fluid upon the dishes in said basket.

2. In a'dish washing machine, the -combination of a revolving washing nozzle, means for alternately supplying soapy and clear water to said nozzle, a control valve for said supplying means, a revolving dishcarrying basket, means for driving Said basket, and means for automatically stopping said driving means and closing said control valve after a predetermined number of revolutionsvof said basket. Y

2l.- ln a dish washing machine, the combination of a revolving dish-carrying basket, a revolving washing nozzle directing washingfluid upon the vdishes in said basket,

Y closing said control'valve after a predetermined number of revolutions of -said basket.

4. In a dish Washing machine, the combination of a receptacle having a movable cover, a. dish-carrying basket mounted in said receptacle, means for rotating said basket,^a rotating nozzle carried by the cover and eccentrically disposed with respect to the axis of rotation of said basket and directing a stream of Washing fluid upon t-he dishes in said basket, a rotating nozzle carried by the bottom of the receptacle and ec centrically disposed with respect to the axis of rotation of said basket and directing a stream of Washing `Huid upon the dishes in said basket, and meansfor supplying said v nozzles with washing Huid.

5. In a dish washing machine, theV comblnation ot a receptacle having a movable cover, a dish-carrying basket mounted inv said receptacle, means for rotating Said bas,-

ket, a rotating nozzle carried by the cover and eccentricallyv disposed with respect to the axis of rotation of said basket and directing Washing fluid upon the dishes in said basket, a rotating nozzle disposed beneath said basket and eccentric to the axis of rotation thereof and directing washing fluid upon the dishes in said basket, and means fordsupplying said nozzles with Washing Hui 6. In a dish Washing machine, the combination of an electric motor, a dish-carrying basket, a revolving nozzle directing wasliingluid upon the dishes in said basket, distributor valves, pipingconnecting said nozzle with said valves, a Soaping device included in the piping from one ot' said valves, a water supply pipe, a control valve in said pipe, piping connecting said control 'valve With said distributor va1ves,. and means actuated by the motor for ope-rating said distributor valves.v i

In testimony whereof, I ailix my signature.

JOSEPH HAUK. 

